Improvement in cutting and punching shingle-bands



E. PERKINS & R. A. SMITH.

Improvement in Cut ting and Punching Shingle Bands.

No, 131,024. Patented Sep. 3, 1872.

Wi'frgaggqs.

UNITED STATES PATENT OFFICE.

ELIAB PERKINS AND ROLLIN A. SMITH,.OF FOND DU LAO, WISCONSIN.

IMPROVEMENT lN CUT TING AND PUNCHING SHlNGLE-BANDS.

Specification forming part of Letters Patent No. 131,024, datedSeptember 3, 1879.

SPECIFICATION.

To all whom it may concern:

Be it known that we, ELIAB PERKINS and ROLLIN A. SMITH, of Fond du Lac,in the county of Fond du Lac and State of Wisconsin, have inventedcertain Improvements in Machine for Cutting and Punching Shingle- Bands,of whichthe following is a specification, reference being had to theaccompanying drawing.

'Our invention consists in certain improvements in machines for cuttingand punching shingle-bands.

Figure 1 is a top-plan view of my machine. Fig. 2 is an end elevation ofthe same. Fig. 3 is a vertical cross-section on the linew m of Fig. 1,showing the cutting and punching mechanism. Fig. 4 is a section view,representing the punches passing through the metal.

In constructing our machine we use a suitable frame, A, on which ismounted a table or platform, B, provided at its rear side with astationary shear-blade, n, and two lugs, 11, one at each end, on whichis mounted or pivoted a movable shear-blade, c, as shown in Figs. 1 and2. This movable blade has secured to it a hand-lever, h, running alongby the side of the table, which lever' is connected by a pitman, I, to acrank, e, on a shaft, 0, mounted in suitable bearin gs underneath thetable B, and provided at its opposite end with a balancewheel, 0. Thereis also a foot-lever, P, pivoted to the frame A, and connected with thecrank-e by means of a pitman, b, so that the machine may be operatedeither by the handlever, the foot-lever, or both, as desired. Di-

rectly in front of the movable shear-blade c is.

a bar, d, mounted loosely on the adjustable uprights r, and operated bytwo or more arms, f, which are connected rigidly to the movableshear-blade c, and also by the flat springs m, the arms forcing it down,and the springs raising it again as soon as the downward pressure isremoved. This bar is provided at eachend with a series of vertical holesto hold one or more punches, t, which are held in place by means ofset-screws s. Directly below the punches and in the top of the table isa series of elongated slots, into which the punches work. The punches,in passing through the metal,make a hole or perforation with flangededges, as seen in Fig. 4, at g. This makes a good holding place for thenails, and, when driven into the wood, holds the band securely.

The operation is as follows: A sheet of metal is laid on the table andone side is pushed under the punches. When this is punched the sheet ofmetal is pushed a little further along and the strip that was firstpunched is cut off, the punches at the same time punching the nextstrip, and so on continuously. By this arrangement the strips are cutoutof the sheet and punched at one operation, instead of cutting the stripsand then punching them, as before.

The uprights 1', on which the bar d which holds the punches is mounted,are held in place by means of a screw, k, passing through a'slot, c,thereby making them adjustable to cut bands of difi'erent widths.

It is obvious that any sort of springs other than those mentioned may beused, and, therefore, we do not limit ourselves to any special form.

Having thus described our invention, what we claim is- 1. As animprovement in machines for punching and shearing shingle-bands, weclaim, jointly, the two -series of slots in the table, the two series ofholes in the bar d, the latter being provided with set-screws forholding the punches, as shown and described.

2. The rocking shear-blade or provided with the arms f, in combinationwith the reciprocating bar at provided with punches t, the springs m ortheir equivalents, and the shear-blade n, all constructed and arrangedto operate sub stantially as described.

3. The combination of the foot-lever P, pitman I), shaftO, pitma-n Z,hand-lever h, and rocking blade 0 with the stationary blade 1, and thereciprocating bar 01 provided with punches t, all arranged as described.

ELIAB PERKINS. ROLLIN A. SMITH.

Witnesses:

I. B. SMITH, WM. McDERMoTT.

